© 2017 Littelfuse Protection Relays & Controls

Protection Relays

Pump Controls and Liquid Level Controls

www.littelfuse.com/

Rev: 1-A-020817

www.littelfuse.com/llc4

LLC4 SERIES

Accessories

BZ1 Front Panel Mount Kit

Provides an easy method of through-the-panel

mounting of 8- or 11-pin plug-in timers, flashers,

and other controls.

NDS-8 Octal 8-pin Socket

8-pin 35mm DIN rail or surface mount. Surface

mounted with two #6 (M 3.5 x 0.6) screws or

snaps onto a 35 mm DIN rail. Uses PSC8 hold-

down clips.

PSC8 Hold-down Clips

Securely mounts plug-in controls in any position.

Provides protection against vibration. Use with

NDS-8 Octal Socket. Sold in pairs.

PHST-38QTN Electrode

Designed for a maximum steam pressure of

240 PSI; 400° F. UL353 Recognized.

LLP-24 Threaded Probe (24”)

Threaded stainless steel probe measuring 24”

(61 cm) long. For use with PHST-38QTN liquid

level control electrodes.

Specifications

Control

Type

ON/OFF (single level) resistance sensor with

built-in time delay to prevent rapid cycling

Sensing Voltage

12VAC

Sensing Resistance

Fixed or adjustable to 250KΩ

Sensing Resistance

Tolerance

Adjustable: 1K ±500Ω at low end;

250K ±25% at high end

Factory fixed: ±10% or 500Ω, whichever

is greater

Input

Voltage

24, 120, or 230VAC

Tolerance

24VAC

-15%, +20%

120 & 230VAC

-20%, +10%

AC Line Frequency

50/60 Hz

Output

Type

Electromechanical relay

Form

Isolated, SPDT

Rating

4A resistive @ 240VAC;

1/10 hp @ 240VAC

Protection

Surge

IEEE C62.41-1991 Level A

Isolation Voltage

≥ 1500V RMS between input, output & probe

Mechanical

Mounting

Plug-in socket

Termination

Octal 8-pin plug-in

Dimensions

H 73.9 mm (2.91”); W 60.7 mm (2.39”);

D 45.2 mm (1.78”)

Environmental

Operating/Storage

Temperature

-20° to 60°C/-40° to 80°C

Weight

≅ 6 oz (170 g)